WO2022224931A1 - Seedling row separate supply device - Google Patents

Seedling row separate supply device Download PDF

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Publication number
WO2022224931A1
WO2022224931A1 PCT/JP2022/018033 JP2022018033W WO2022224931A1 WO 2022224931 A1 WO2022224931 A1 WO 2022224931A1 JP 2022018033 W JP2022018033 W JP 2022018033W WO 2022224931 A1 WO2022224931 A1 WO 2022224931A1
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Prior art keywords
seedling
pair
conveyors
seedlings
row
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PCT/JP2022/018033
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French (fr)
Japanese (ja)
Inventor
隆仁 玉尾
崇 鯨井
真 松田
城久 今村
Original Assignee
日本甜菜製糖株式会社
サークル機工株式会社
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Application filed by 日本甜菜製糖株式会社, サークル機工株式会社 filed Critical 日本甜菜製糖株式会社
Priority to JP2023515461A priority Critical patent/JPWO2022224931A1/ja
Publication of WO2022224931A1 publication Critical patent/WO2022224931A1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/02—Transplanting machines for seedlings

Definitions

  • the present invention relates to a seedling row separating and supplying device that separates rows of seedlings into two and supplies them to a seedling planting device.
  • transplanter that transplants paper tube seedlings separated from a group of connected seedlings into a field in multiple rows using a seedling planting device.
  • This type of transplanter is equipped with a seedling row feeding device for feeding paper tube seedlings to the seedling planting device.
  • the row seedling supply device receives rows of seedlings separated in rows from the group of connected seedlings, and supplies paper tube seedlings to the seedling planting device.
  • a separate seedling row supply device hereinafter referred to as "seedling row separating and feeding apparatus").
  • the row seedlings are placed so as to straddle a pair of conveyors that rotate in the direction in which the conveying direction is separated from each other (separation direction). If the adhesive force between the paper tube seedlings of the row seedlings is strong, the row seedlings may not be separated to the left and right at the adjacent positions of the pair of conveyors, and the supply amount of the row seedlings may be uneven.
  • the present invention has been made in view of the above problem, and an object of the present invention is to provide a seedling row separating and supplying device capable of suppressing the bias in the supply amount of row seedlings.
  • the seedling row separating and feeding device of the present invention separates a series of row seedlings in which a plurality of paper tube seedlings are arranged side by side into two directions and supplies them to the seedling planting device.
  • An apparatus comprising: a pair of receiving conveyors arranged in series with each other and transported in directions away from each other, on which the row seedlings are straddled; and the row-shaped seedlings placed on the pair of receiving conveyors and separation position adjusting means for adjusting the separation position of the seedlings.
  • the separation position adjusting means by adjusting the separation position of the row seedlings placed on the pair of receiving conveyors by the separation position adjusting means, the amount of row seedlings supplied from the row seedling separation and supply device to the seedling planting device bias can be suppressed.
  • FIG. 1 is a side view of a transplanter to which a seedling row separating and feeding device according to first to third embodiments is applied;
  • FIG. Fig. 2 is a plan view of the transplanter in Fig. 1;
  • BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the seedling row separation supply apparatus which concerns on 1st Embodiment.
  • FIG. 4 is an explanatory diagram of the second embodiment, in which (a) is a state in which the adjacent positions of the pair of left and right receiving conveyors are moved to the right along the conveying direction, and (b) is the state in which the adjacent positions of the pair of left and right receiving conveyors are moved in the conveying direction; It shows the state moved to the left along the .
  • FIG. 4 is an explanatory diagram of the second embodiment, in which (a) is a state in which the adjacent positions of the pair of left and right receiving conveyors are moved to the right along the conveying direction, and (b) is the state in which the adjacent positions of the pair of left and right receiving conveyors are moved in the conveying direction; It shows the state moved to the left along the .
  • It is a conceptual diagram of the seedling row separation supply apparatus which concerns on 3rd Embodiment.
  • It is a conceptual diagram of another Example of a seedling row separation supply apparatus.
  • FIGS. 1 and 2 A first embodiment of the present invention will be described with reference to the accompanying drawings. First, a transplanter to which the seedling row separating and supplying device according to the first embodiment is applied will be described.
  • positions such as top, bottom, left, and right are referred to according to the direction of the reference numerals in the drawings.
  • the left direction (left side) in FIGS. 1 and 2 is referred to as the front direction (front side)
  • the right direction (right side) is referred to as the rear direction (rear side).
  • the downward direction (lower side) in FIG. 2 is called the right direction (right side)
  • the upward direction (upper side) is called the left direction (left side).
  • the left-right direction in FIGS. 3 and 4 is referred to as the transport direction.
  • the transplanter 1 simultaneously transplants a plurality of rows (two rows in the first embodiment) of paper tube seedlings 7 into a field (not shown). is connected to a tractor (not shown) via a connecting piece 11.
  • the transplanter 1 receives a series of row seedlings 5 in which a plurality of paper tube seedlings 7 are connected in parallel, and separates the received row seedlings 5 into two directions (left and right). and a seedling planting device 15 for planting the paper tube seedlings 7 of the row-shaped seedlings 5 formed in a field.
  • the seedling row separating and supplying device 13A includes a pair of left and right receiving conveyors for receiving rows of seedlings 5 separated from a group of connected seedlings 3 stored in a seedling box 19 placed on a seedling platform 17.
  • a pair of left and right planting conveying conveyors 37L and 37R for receiving and conveying paper tube seedlings 7 conveyed from conveyors 35L and 35R are provided.
  • the seedling row separating and supplying device 13A receives the paper tube seedlings 7 conveyed from the pair of left and right planting conveying conveyors 37L and 37R, and supplies the received paper tube seedlings 7 to the seedling planting device 15.
  • Supply conveyors 39L, 39R are provided.
  • a pair of left and right receiving conveyors 29L, 29R, a pair of left and right upper supply conveyors 35L, 35R, a pair of left and right planting conveyors 37L, 37R, and a pair of left and right lower supply conveyors 39L, 39R are power take-off (PTO) of the tractor. It is driven by a power supply via shafts or ground drive wheels 21 (see FIG. 1).
  • the pair of left and right receiving conveyors 29L, 29R includes a pair of left and right first seedling feeding conveyors 31L, 31R and a pair of right and left first seedling feeding conveyors 31L, 31R for receiving and conveying row seedlings 5 conveyed from the pair of left and right first seedling feeding conveyors 31L, 31R. 2 seedling feeding conveyors 33L and 33R are provided.
  • the pair of left and right first seedling feed conveyors 31L and 31R are arranged in series with each other and rotate so that the conveying direction is the direction away from each other (separation direction), and the separated seedlings 5 are transferred to the second pair of left and right seedlings.
  • the seedlings are conveyed to the seedling feeding conveyors 33L and 33R.
  • a pair of left and right first seedling feeding conveyors 31L, 31R are made of a cushioning material such as rubber, polyurethane, etc., which are looped around first conveyor rollers 41L, 41R and second conveyor rollers 42L, 42R. Endless belts 43L and 43R (belts) are provided.
  • endless belts 43L and 43R of the pair of left and right first seedling feeding conveyors 31L and 31R have a plurality of rectangular projections in cross section for holding the paper tube seedlings 7 on their conveying surfaces.
  • 44 (separation position adjusting means) is provided.
  • the protrusion 44 is a single protrusion extending in the width direction of the endless belts 43L, 43R (see FIG. 3), and is provided at a predetermined interval along the conveying direction of the pair of left and right first seedling feeding conveyors 31L, 31R. (See Figures 4 and 5).
  • the protrusions 44 are provided at intervals that can hold one paper tube seedling 7 .
  • the pair of left and right second seedling feed conveyors 33L, 33R rotates so that the conveying direction is in a direction away from each other (separation direction), and is connected to the delivery ends of the pair of left and right first seedling feed conveyors 31L, 31R. , and arranged in series with respect to the pair of left and right first seedling feeding conveyors 31L and 31R.
  • the pair of left and right second seedling feeding conveyors 33L and 33R includes first to fifth conveyor rollers 45L to 49L and 45R to 49R and an endless belt made of a cushioning material such as rubber or polyurethane. 50L and 50R (belts) are provided.
  • the endless belts 50L, 50R comprise first conveyor rollers 45L, 45R arranged adjacent to the second conveyor rollers 42L, 42R of the pair of left and right first seedling feed conveyors 31L, 31R, and the pair of left and right upper supply conveyors 35L, Second conveyor rollers 46L, 46R arranged adjacent to 35R, third conveyor rollers 47L, 47R arranged below the second conveyor rollers 42L, 42R, and below the first conveyor rollers 45L, 45R It is looped around the arranged fourth conveyor rollers 48L and 48R.
  • the fifth conveyor rollers 49L, 49R are arranged so as to turn back the endless belts 50L, 50R, that is, between the first conveyor rollers 45L, 45R and the fourth conveyor rollers 48L, 48R, and the first conveyor rollers 45L. , 45R and the fourth conveyor rollers 48L, 48R (near the second conveyor rollers 46L, 46R and the third conveyor rollers 47L, 47R), and contact the surfaces (conveyance surfaces) of the endless belts 50L, 50R. It is
  • the pair of left and right upper supply conveyors 35L, 35R are arranged adjacent to the delivery ends of the pair of left and right second seedling feeding conveyors 33L, 33R, and are composed of a pair of left and right endless belts 52, 53 extending in the vertical direction.
  • the pair of left and right upper supply conveyors 35L, 35R sequentially feeds the leading paper tube seedlings 7 of the row seedlings 5 conveyed from the pair of left and right receiving conveyors 29L, 29R (the pair of left and right second seedling feeding conveyors 33L, 33R). It is sandwiched and conveyed downward (downward in the drawing in FIG. 4).
  • the pair of left and right endless belts 52 and 53 are made of a cushioning material such as rubber or polyurethane.
  • the pair of left and right planting conveying conveyors 37L, 37R are arranged so that one end side thereof (the receiving side of the paper tube seedling 7) is arranged below the pair of left and right upper supply conveyors 35L, 35R and extends in a direction approaching each other. be done.
  • the pair of left and right planting conveyors 37L, 37R conveys the paper tube seedlings 7 received from the pair of left and right upper supply conveyors 35L, 35R to the pair of left and right lower supply conveyors 39L, 39R.
  • the pair of left and right lower supply conveyors 39L, 39R are arranged adjacent to the delivery ends of the pair of left and right planted conveying conveyors 37L, 37R, and are composed of a pair of left and right endless belts 54, 55 extending in the vertical direction.
  • the pair of left and right lower supply conveyors 39L and 39R sequentially sandwich the paper tube seedlings 7 transported from the pair of left and right planting transport conveyors 37L and 37R and supply them to the seedling planting device 15 .
  • the pair of left and right endless belts 54 and 55 are made of a cushioning material such as rubber or polyurethane.
  • the first conveyor rollers 45L, 45R and the fifth conveyor rollers 49L, 49R are rotatably provided on one connecting frame 56 as movable rollers.
  • the connecting frame 56 integrally supports these movable rollers, and is connected to a frame body (not shown) that supports the fixed rollers other than the movable rollers of the pair of left and right second seedling feeding conveyors 33L and 33R.
  • 1st seedling feed conveyors 31L and 31R are attached so as to be movable along the conveying direction.
  • the seedling row separating and supplying device 13A includes moving means (separating position adjusting means) for moving the connecting frame 56 along the conveying direction of the pair of left and right first seedling feeding conveyors 31L and 31R.
  • the moving means in the first embodiment includes an actuator that moves the connecting frame 56 (movable roller) along the conveying direction of the pair of left and right first seedling feeding conveyors 31L and 31R.
  • the actuator is an electric cylinder 58 whose one end side is connected with the connecting frame 56 .
  • the first conveyor rollers 45L and 45R (first movable rollers) of the pair of left and right second seedling feeding conveyors 33L and 33R, and the fifth conveyor rollers 49L and 49R (second movable rollers) for folding back the endless belts 50L and 50R.
  • these rollers 45L, 45R, 49L, 49R can be moved without changing the total length of the endless belts 50L, 50R.
  • the seedling planting device 15 is formed by a groove cutter 61 which is provided in the lower part of the body frame 9 and forms a planting groove (not shown) in the field, and the groove cutter 61.
  • the seedling planting device 15 is a conventional sandwich planting method (see Japanese Patent Application Laid-Open No. 1-289406 as an example) using planting discs 63 made of two rubber plates, and is a pair of lower stages of the seedling row separating and feeding device 13A.
  • Paper tube seedlings 7 conveyed from supply conveyors 39L and 39R are sandwiched between two rubber plates and dropped into a planting groove in a field.
  • the paper tube seedling 7 dropped into the planting groove is fixed to the field by a pair of left and right pressing wheels 65 .
  • FIG. 7 a group of connected seedlings 3 (see FIGS. 1 and 2) housed in a seedling box 19 is divided into rows, and the divided row-shaped seedlings 5 are placed in a pair of left and right seedling row separating and feeding devices 13A.
  • the seedlings are placed on the first seedling feeding conveyors 31L, 31R and the pair of left and right second seedling feeding conveyors 33L, 33R.
  • the paper tube seedlings 7 that are part of the row seedlings 5 are separated from the projections 44, 44 (separated
  • the pair of left and right first seedling feeding conveyors 31L and 31R are rotated so that their conveying directions are separated from each other (separation direction).
  • the separation position of the row seedlings 5 is adjusted near the adjacent position P of the pair of left and right receiving conveyors 29L and 29R.
  • each row-shaped seedling 5 separated to the left and right is conveyed to a pair of left and right upper supply conveyors 35L and 35R via a pair of second seedling feeding conveyors 33L and 33R.
  • the conveyed row seedlings 5 are separated into individual paper tube seedlings 7 in the process of passing through a pair of left and right upper supply conveyors 35L and 35R.
  • the separated paper tube seedlings 7 are conveyed from a pair of left and right upper supply conveyors 35L, 35R to a pair of left and right planting conveyors 37L, 37R.
  • the pair of left and right planting conveyers 37L, 37R transports the seedling paper tube 7 to the pair of left and right lower supply conveyors 39L, 39R, and the pair of left and right lower supply conveyors 39L, 39R plant the seedling paper tube 7 received. Transfer to the planting disk 63 of the planting device 15 .
  • the separation position of the row seedlings was sometimes biased to the left and right due to the adhesive force between the paper tube seedlings, the deviation of the placement position of the row seedlings, and the like. If the separation position is biased, when the next row of seedlings is placed, the row of seedlings will remain on the left receiving conveyor or the right receiving conveyor.
  • the separation position of the row seedlings 5 is adjusted by displacing the adjacent position P of the pair of left and right receiving conveyors 29L and 29R with the electric cylinder 58 (moving means).
  • the connecting frame 56 is moved left and right by extending the electric cylinder 58. It is moved to the transport direction side of the pair of first seedling feeding conveyors 31R.
  • the first conveyor rollers 41L, 41R and the second conveyor rollers 42L, 42R of the pair of left and right first seedling feed conveyors 31L, 31R, and the first conveyor rollers 45L of the pair of left and right second seedling feed conveyors 33L, 33R , 45R and the fifth conveyor rollers 49L, 49R move together (see arrows in FIG. 8), and the adjacent position P between the pair of left and right receiving conveyors 29L, 29R is displaced to the adjacent position P1.
  • the row seedlings 5 are placed on the pair of left and right first seedling feeding conveyors 31L and 31R and the pair of left and right second seedling feeding conveyors 33L and 33R, the row seedlings 5 are placed near the adjacent position P1 after movement. is separated into left and right. At this time, the row seedlings 5 are placed on the side of the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L more than the amount placed on the side of the first seedling feeding conveyor 31R and the second seedling feeding conveyor 33R. increase the amount of In this manner, the amount of paper tube seedlings 7 supplied to the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L can be adjusted (increased).
  • the row seedlings 5 conveyed from the pair of left and right second seedling feeding conveyors 33L, 33R are separated into individual paper tube seedlings 7 by the pair of left and right upper supply conveyors 35L, 35R, and the separated paper tube seedlings 7 are The seedlings are transferred to the planting disk 63 of the seedling planting device 15 via a pair of left and right planting conveying conveyors 37L, 37R and a pair of left and right lower supply conveyors 39L, 39R.
  • the electric cylinder 58 is contracted to move the connecting frame 56 into a pair of left and right. , to the conveying direction side of the first seedling feeding conveyor 31L.
  • the first conveyor rollers 41L, 41R and the second conveyor rollers 42L, 42R of the pair of left and right first seedling feed conveyors 31L, 31R, and the first conveyor rollers 45L of the pair of left and right second seedling feed conveyors 33L, 33R , 45R and the fifth conveyor rollers 49L, 49R move together (see arrows in FIG. 9), and the adjacent position P between the pair of left and right receiving conveyors 29L, 29R is displaced to the adjacent position P2.
  • the row seedlings 5 are placed on the pair of left and right first seedling feeding conveyors 31L and 31R and the pair of left and right second seedling feeding conveyors 33L and 33R, the row seedlings 5 are placed near the adjacent position P2 after movement. is separated into left and right. At this time, the row seedlings 5 are placed on the first seedling feed conveyor 31R and the second seedling feed conveyor 33R side more than the amount placed on the first seedling feed conveyor 31L and the second seedling feed conveyor 33L side. increase the amount of In this way, the amount of paper tube seedlings 7 supplied to the first seedling feeding conveyor 31R and the second seedling feeding conveyor 33R can be adjusted (increased).
  • the row seedlings 5 conveyed from the pair of left and right second seedling feeding conveyors 33L, 33R are separated into individual paper tube seedlings 7 by the pair of left and right upper supply conveyors 35L, 35R, and the separated paper tube seedlings 7 are The seedlings are transferred to the planting disk 63 of the seedling planting device 15 via a pair of left and right planting conveying conveyors 37L, 37R and a pair of left and right lower supply conveyors 39L, 39R.
  • the transplanter 1 to which the seedling row separating and supplying device 13A according to the first embodiment is applied can obtain the following effects.
  • the row seedlings 5 are placed on the pair of left and right receiving conveyors 29L and 29R (the first seedling feeding conveyors 31L and 31R and the second seedling feeding conveyors 33L and 33R) of the seedling row separating and supplying device 13A, the row seedlings 5 are When biased toward the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L side, or the first seedling feeding conveyor 31R and the second seedling feeding conveyor 33R side, the paper tube seedlings 7 are evenly distributed to the seedling planting device 15. There is a possibility that the supply of paper tube seedlings 7 will be insufficient.
  • the electric cylinder 58 (moving means) is used to move the connecting frame 56 along the conveying direction of the pair of left and right first seedling feed conveyors 31L and 31R, thereby moving the pair of left and right receiving conveyors 29L and 29R.
  • the separation position of the row seedlings 5, that is, the amount of separation to the left and right is adjusted.
  • the unevenness of the row-shaped seedlings 5 can be suppressed, the paper tube seedlings 7 can be evenly supplied to the seedling planting device 15, and the supply shortage of the paper tube seedlings 7 can be avoided.
  • the pair of left and right first seedling feeding conveyors 31L, 31R are arranged on the conveying surface at intervals substantially equal to the width of the paper tube seedlings 7 along the conveying direction of the pair of left and right first seedling feeding conveyors 31L, 31R. Since the provided protrusions 44 (separation position adjusting means) are provided, the paper tube seedlings 7 are reliably held between the adjacent protrusions 44 , 44 . As a result, even if the adhesive force between the paper tube seedlings 7 of the row seedlings 5 is strong, the row seedlings 5 can be separated appropriately at the adjacent position P between the pair of left and right receiving conveyors 29L and 29R, in other words. , the separation position of the row seedlings 5 can be adjusted to the adjacent position P of the pair of left and right receiving conveyors 29L, 29R, and bias of the row seedlings 5 can be suppressed.
  • the first embodiment can be configured as follows.
  • the pair of left and right first seedling feeding conveyors 31L and 31R is provided between the pair of left and right second seedling feeding conveyors 33L and 33R to configure the seedling row separating and feeding device 13A.
  • two pairs of left and right first seedling feeding conveyors 31L and 31R may be provided, or two or more pairs may be provided.
  • the endless belts 43L, 43R of the pair of left and right first seedling feeding conveyors 31L, 31R are hung on two conveyor rollers (first conveyor rollers 41L, 41R and second conveyor rollers 42L, 42R). Although it is rotated, as shown in FIG.
  • a plurality of protrusions 44 are provided on the pair of right and left first seedling feeding conveyors 31L and 31R. Anything that can be separated by For example, as shown in FIG.
  • the distance between adjacent projections 44, 44 may be narrowed, and a plurality of paper tube seedlings 7, such as two or three, may be held. , the formation intervals of the protrusions 44 may be changed as appropriate.
  • the protrusion 44 has a square cross section, it may have a triangular cross section as shown in FIG. 11(b), or may have another shape such as a trapezoid.
  • the seedling row separation and supply device 13B includes a detection means for detecting the transported paper tube seedlings 7 and a control means for controlling the operation of the electric cylinder 58 (moving means, see FIG. 3). , is different from the seedling row separating and supplying device 13A according to the first embodiment. Note that the same designations and reference numerals are used for common parts with the first embodiment, and redundant explanations are omitted.
  • the seedling row separating and supplying device 13B includes detection means 71L and 71R for detecting row seedlings 5 on the pair of left and right second seedling feed conveyors 33L and 33R, and detection means 71L and 71R for detecting the row seedlings 5.
  • a control means 73 for controlling the operation of the electric cylinder 58 based on the above and adjusting the supply of the paper tube seedlings 7 separated in two directions.
  • the detection means 71L and 71R are arranged near the delivery end of the pair of left and right second seedling feed conveyors 33L and 33R, and transmit the detected signal (detection signal) to the control means 73 .
  • the control means 73 receives the detection signals transmitted from the detection means 71L and 71R, and controls the operation of the electric cylinder 58 according to the received detection signals.
  • Detecting means 71L and 71R detect the presence or absence of row-shaped seedlings 5 flowing in front of the delivery end of the pair of left and right second seedling feeding conveyors 33, and based on this detection, the control means 73 activates the electric cylinder 58. Control. Specifically, as shown in FIG. 13(a), when there are no rows of seedlings 5 remaining on the second seedling feeding conveyor 33L, the detection means 71L detects this state, and outputs the detection signal to the control means 73. Send to The control means 73 operates the electric cylinder 58 according to the received detection signal. Thereby, the connecting frame 56 (movable roller) is moved by the electric cylinder 58 along the conveying direction of the first seedling feeding conveyor 31R.
  • the detection means 71R detects this state and transmits a detection signal to the control means 73.
  • the control means 73 operates the electric cylinder 58 according to the received detection signal.
  • the connecting frame 56 movable roller
  • the detection means 71L and 71R detect the state in which the row seedlings 5 do not remain, but detect the state in which the row seedlings 5 remain, and output the detection signal to the control means. 73.
  • the detectors 71L and 71R detect a state in which the row seedlings 5 do not remain on the second seedling feeding conveyors 33L and 33R, and transmit the detected signals to the controller 73.
  • FIG. The control means 73 controls the operation of the electric cylinder 58 (moving means) according to the detection signals of the detection means 71L and 71R, and displaces the adjacent position P between the pair of receiving conveyors 29L and 29R to the displacement position P1 or the displacement position P2.
  • the seedling row separation supply device 13C according to the third embodiment does not include the left and right pair of first seedling feeding conveyors 31L and 31R of the seedling row separation supply device 13A. 13A is different. Note that the same designations and reference numerals are used for common parts with the first embodiment, and redundant explanations are omitted.
  • the pair of left and right receiving conveyors 29L and 29R in the seedling row separation and supply device 13C according to the third embodiment includes the left and right pair of first seedling feeding conveyors 31L and 31R of the seedling row separation and supply device 13A according to the first embodiment. It is composed only of a pair of left and right second seedling feeding conveyors 33L and 33R.
  • the first conveyor rollers 45L, 45R of the pair of left and right second seedling feeding conveyors 33L, 33R are arranged adjacent to each other. Only the first conveyor rollers 45L, 45R and the fifth conveyor rollers 49L, 49R of the pair of left and right second seedling feeding conveyors 33L, 33R are connected to the connecting frame 56 (see FIG. 3).
  • a plurality of rectangular projections 75 (separation position adjusting means) for holding the paper tube seedlings 7 are provided on the conveying surfaces of the pair of left and right second seedling feeding conveyors 33L and 33R.
  • the plurality of protrusions 75 are single protrusions extending in the width direction of the endless belts 50L, 50R, and are provided at predetermined intervals along the conveying direction of the pair of left and right second seedling feeding conveyors 33L, 33R.
  • the protrusions 75 are provided at intervals so as to hold one paper tube seedling 7 .
  • the electric cylinder 58 moving means
  • the pair of left and right second seedling feed conveyors 33L, 33R move.
  • the first conveyor rollers 45L, 45R (first movable rollers) and the fifth conveyor rollers 49L, 49R (second movable rollers) move, and the adjacent position P of the pair of left and right second seedling feeding conveyors 33L, 33R is displaced. do.
  • the transplanter 1 to which the seedling row separating and supplying device 13C according to the third embodiment is applied the following effects can be obtained in addition to the effects of the first embodiment described above.
  • the pair of left and right receiving conveyors 29L, 29R is composed only of the pair of left and right second seedling feed conveyors 33L, 33R, so the number of parts is reduced and the seedling row separating and supplying device 13C is simplified. be able to.
  • a belt with projections having a larger circumferential length than those in the first and second embodiments is required.
  • the above-described seedling row separating and supplying device can be configured as follows.
  • the pair of left and right receiving conveyors 29L and 29R includes a pair of first seedling feeding conveyors 31L and 31R, as shown in FIG. , that is, the adjacent position P of the pair of left and right receiving conveyors 29L and 29R is not displaced.
  • the paper tube seedlings 7 are securely held between the projections 44, 44 (separation position adjusting means) of the pair of first seedling feeding conveyors 31L, 31R, the paper tube seedlings 7 have a strong adhesive force.
  • the row seedlings 5 are properly separated at the adjacent positions P of the pair of left and right receiving conveyors 29L, 29R.
  • the separation position adjusting means can adjust the separation position of the row seedlings 5 to the position P adjacent to the pair of left and right receiving conveyors 29L and 29R.
  • the adjacent position P of the pair of left and right receiving conveyors 29L, 29R cannot be displaced, the number of parts is reduced, so the seedling row separating and feeding device can be simplified.
  • the pair of left and right second seedling feed conveyors 33L and 33R are provided with predetermined A plurality of protrusions may be provided at intervals of .
  • the above projections and the projections 75 of the pair of left and right second seedling feeding conveyors 33L and 33R in the seedling row separating and supplying device 13C according to the third embodiment may be configured in the same manner as the projections 44 shown in FIG. can.
  • the seedling according to the first to third embodiments displaces the adjacent position P of the pair of left and right receiving conveyors 29L and 29R to the adjacent position P1 or the adjacent position P2 using the electric cylinder 58 (moving means, separation position adjusting means).
  • the protrusions 44 or 75 (separation position adjusting means) provided on the pair of left and right receiving conveyors 29L, 29R are not essential components.
  • the endless belts 43L and 43R of the pair of left and right first seedling feeding conveyors 31L and 31R and the pair of left and right second seedling feeding conveyors are independent belts, but by crossing the belts so that the conveying directions are separated from each other, one common belt can be formed.

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  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Transplanting Machines (AREA)

Abstract

A joint frame 56 is moved along a conveying direction of a pair of left and right first seedling supply conveyors 31L, 31R by an electric cylinder 58 (moving means) to displace an adjacent position P of a pair of left and right receiving conveyors 29L, 29R to an adjacent position P1 or an adjacent position P2, whereby adjusting the separating position of a row seedling 5, i.e., the amounts of separation to left and right. Consequently, unevenness of the row seedling 5 is inhibited, paper tube seedlings 7 can equally be supplied to a seedling planting device 15, and a supply shortage of the paper tube seedlings 7 can be avoided.

Description

苗列分離供給装置Seedling line separating and feeding device
　本発明は、列状苗を二方に分離して苗植付装置に供給する苗列分離供給装置に関する。 The present invention relates to a seedling row separating and supplying device that separates rows of seedlings into two and supplies them to a seedling planting device.
　従来、連結苗群から分離させた紙筒苗を苗植付装置によって圃場に複数条で移植する移植機が知られる。この種の移植機には、苗植付装置に紙筒苗を供給するための苗列供給装置が備えられる。苗列供給装置は、連結苗群から列状に分離した列状苗を受け入れ、苗植付装置に紙筒苗を供給する。例えば、特許文献１には、複数の紙筒苗が並列に連結された一連の列状苗を受け入れると共に、受け入れた列状苗を二方（左右）に分離する分離式の苗列供給装置（以下「苗列分離供給装置」と称する）が開示されている。 Conventionally, there is known a transplanter that transplants paper tube seedlings separated from a group of connected seedlings into a field in multiple rows using a seedling planting device. This type of transplanter is equipped with a seedling row feeding device for feeding paper tube seedlings to the seedling planting device. The row seedling supply device receives rows of seedlings separated in rows from the group of connected seedlings, and supplies paper tube seedlings to the seedling planting device. For example, in Patent Document 1, a separate seedling row supply device ( hereinafter referred to as "seedling row separating and feeding apparatus").
特開２００３－２３８２２号公報JP-A-2003-23822
　特許文献１に記載された苗列分離供給装置では、列状苗は、搬送方向が互いに離間する方向（背離方向）に回転する一対のコンベヤを跨ぐようにして載置されるが、跨った位置での列状苗の紙筒苗間の粘着力が強いと、一対のコンベヤの隣接位置で列状苗が左右に分離されず、列状苗の供給量に偏りが発生することがある。 In the seedling row separation and supply device described in Patent Document 1, the row seedlings are placed so as to straddle a pair of conveyors that rotate in the direction in which the conveying direction is separated from each other (separation direction). If the adhesive force between the paper tube seedlings of the row seedlings is strong, the row seedlings may not be separated to the left and right at the adjacent positions of the pair of conveyors, and the supply amount of the row seedlings may be uneven.
　本発明は、上記問題に鑑みてなされたものであり、列状苗の供給量の偏りを抑制することが可能な苗列分離供給装置を提供することを目的とする。 The present invention has been made in view of the above problem, and an object of the present invention is to provide a seedling row separating and supplying device capable of suppressing the bias in the supply amount of row seedlings.
　上記課題を解決するために、本発明の苗列分離供給装置は、複数の紙筒苗が並列された一連の列状苗を二方に分離して苗植付装置に供給する苗列分離供給装置であって、前記列状苗が跨って載置される、互いに直列に配置されて搬送方向が互いに離間する方向の一対の受入コンベアと、一対の前記受入コンベヤに載置された前記列状苗の分離位置を調整する分離位置調整手段と、を備えることを特徴とする。 In order to solve the above problems, the seedling row separating and feeding device of the present invention separates a series of row seedlings in which a plurality of paper tube seedlings are arranged side by side into two directions and supplies them to the seedling planting device. An apparatus comprising: a pair of receiving conveyors arranged in series with each other and transported in directions away from each other, on which the row seedlings are straddled; and the row-shaped seedlings placed on the pair of receiving conveyors and separation position adjusting means for adjusting the separation position of the seedlings.
　本発明によれば、一対の受入コンベヤに載置された列状苗の分離位置を分離位置調整手段によって調整することで、苗列分離供給装置から苗植付装置への列状苗の供給量の偏りを抑制することができる。 According to the present invention, by adjusting the separation position of the row seedlings placed on the pair of receiving conveyors by the separation position adjusting means, the amount of row seedlings supplied from the row seedling separation and supply device to the seedling planting device bias can be suppressed.
第１乃至第３実施形態に係る苗列分離供給装置が適用された移植機の側面図である。1 is a side view of a transplanter to which a seedling row separating and feeding device according to first to third embodiments is applied; FIG. 図１における移植機の平面図である。Fig. 2 is a plan view of the transplanter in Fig. 1; 第１実施形態に係る苗列分離供給装置の平面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the seedling row separation supply apparatus which concerns on 1st Embodiment. 図３における苗列分離供給装置の概念図である。It is a conceptual diagram of the seedling row separation supply apparatus in FIG. 図４における左右一対の第１苗送りコンベヤの拡大図である。It is an enlarged view of the left-right paired 1st seedling feed conveyor in FIG. 第１実施形態の説明図であって、移動手段によって連結枠を移動させた状態を示す図である。It is an explanatory view of the first embodiment, showing a state in which the connecting frame is moved by the moving means. 第１実施形態の説明図であって、苗列分離供給装置における紙筒苗の供給経路を示す図である。It is an explanatory view of a 1st embodiment, and is a figure showing a supply course of a paper tube seedling in a seedling row separation supply device. 第１実施形態の説明図であって、左右一対の受入コンベヤの隣接位置を搬送方向に沿って右側に移動させた状態を示す図である。It is an explanatory view of the first embodiment, showing a state in which adjacent positions of a pair of left and right receiving conveyors are moved rightward along the transport direction. 第１実施形態の説明図であって、左右一対の受入コンベヤの隣接位置を搬送方向に沿って左側に移動させた状態を示す図である。It is an explanatory view of the first embodiment, and shows a state in which adjacent positions of a pair of left and right receiving conveyors are moved leftward along the transport direction. 図４に示す苗列分離供給装置の変形例を示す概念図であり、（ａ）は第１変形例、（ｂ）は第２変形例である。It is a conceptual diagram which shows the modification of the seedling row separation supply apparatus shown in FIG. 4, (a) is a 1st modification, (b) is a 2nd modification. 図５に示す左右一対の第１苗送りコンベヤの変形例を示す概念図であり、（ａ）は第１変形例、（ｂ）は第２変形例である。It is a conceptual diagram which shows the modification of a left-right paired 1st seedling feed conveyor shown in FIG. 5, (a) is a 1st modification, (b) is a 2nd modification. 第２実施形態に係る苗列分離供給装置の概念図である。It is a conceptual diagram of the seedling row separation supply apparatus which concerns on 2nd Embodiment. 第２実施形態の説明図であり、（ａ）は左右一対の受入コンベヤの隣接位置を搬送方向に沿って右側に移動させた状態、（ｂ）は左右一対の受入コンベヤの隣接位置を搬送方向に沿って左側に移動させた状態を示す。FIG. 4 is an explanatory diagram of the second embodiment, in which (a) is a state in which the adjacent positions of the pair of left and right receiving conveyors are moved to the right along the conveying direction, and (b) is the state in which the adjacent positions of the pair of left and right receiving conveyors are moved in the conveying direction; It shows the state moved to the left along the . 第３実施形態に係る苗列分離供給装置の概念図である。It is a conceptual diagram of the seedling row separation supply apparatus which concerns on 3rd Embodiment. 苗列分離供給装置の他の実施例の概念図である。It is a conceptual diagram of another Example of a seedling row separation supply apparatus.
（第１実施形態）
　本発明の第１実施形態を添付した図を参照して説明する。
　まず、第１実施形態に係る苗列分離供給装置を適用した移植機を説明する。なお、添付した図については、図中の符号の向きに合わせて、図の上下左右などの位置を呼称する。例えば、図１、図２における左方向（左側）を前方向（前側）と称するとともに右方向（右側）を後方向（後側）と称する。また、図２における下方向（下側）を右方向（右側）と称するとともに上方向（上側）を左方向（左側）と称する。さらに、図３、図４における左右方向を搬送方向と称する。 (First embodiment)
A first embodiment of the present invention will be described with reference to the accompanying drawings.
First, a transplanter to which the seedling row separating and supplying device according to the first embodiment is applied will be described. In the attached drawings, positions such as top, bottom, left, and right are referred to according to the direction of the reference numerals in the drawings. For example, the left direction (left side) in FIGS. 1 and 2 is referred to as the front direction (front side), and the right direction (right side) is referred to as the rear direction (rear side). Further, the downward direction (lower side) in FIG. 2 is called the right direction (right side), and the upward direction (upper side) is called the left direction (left side). Further, the left-right direction in FIGS. 3 and 4 is referred to as the transport direction.
　図１、図２に示すように、移植機１は、複数条（第１実施形態では、２条）の紙筒苗７を同時に圃場（図示せず）へ移植するものであり、本体フレーム９の連結片１１を介してトラクタ（図示せず）に連結される。移植機１は、複数の紙筒苗７が並列に連結された一連の列状苗５を受け入れ、受け入れた列状苗５を二方（左右）に分離する苗列分離供給装置１３Ａと、分離された列状苗５の紙筒苗７を圃場に植え付ける苗植付装置１５と、を有する。 As shown in FIGS. 1 and 2, the transplanter 1 simultaneously transplants a plurality of rows (two rows in the first embodiment) of paper tube seedlings 7 into a field (not shown). is connected to a tractor (not shown) via a connecting piece 11. The transplanter 1 receives a series of row seedlings 5 in which a plurality of paper tube seedlings 7 are connected in parallel, and separates the received row seedlings 5 into two directions (left and right). and a seedling planting device 15 for planting the paper tube seedlings 7 of the row-shaped seedlings 5 formed in a field.
（苗列分離供給装置）
　図１乃至図４を参照すると、苗列分離供給装置１３Ａは、苗台１７に載置された苗箱１９に収納された連結苗群３から分離した列状苗５を受け入れる左右一対の受入コンベヤ２９Ｌ，２９Ｒと、左右一対の受入コンベヤ２９Ｌ，２９Ｒから搬送される列状苗５を個々の紙筒苗７に分離して搬送する左右一対の上段供給コンベヤ３５Ｌ，３５Ｒと、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒから搬送される紙筒苗７を受け取り搬送する左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒと、を備える。 (Seedling row separation supply device)
Referring to FIGS. 1 to 4, the seedling row separating and supplying device 13A includes a pair of left and right receiving conveyors for receiving rows of seedlings 5 separated from a group of connected seedlings 3 stored in a seedling box 19 placed on a seedling platform 17. 29L, 29R, a pair of left and right upper supply conveyors 35L, 35R for separating and conveying row seedlings 5 conveyed from a pair of left and right receiving conveyors 29L, 29R into individual paper tube seedlings 7, and a pair of left and right upper supply conveyors. A pair of left and right planting conveying conveyors 37L and 37R for receiving and conveying paper tube seedlings 7 conveyed from conveyors 35L and 35R are provided.
　さらに、苗列分離供給装置１３Ａは、左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒから搬送される紙筒苗７を受け取り、受け取った紙筒苗７を苗植付装置１５へ供給する左右一対の下段供給コンベヤ３９Ｌ，３９Ｒを備える。左右一対の受入コンベヤ２９Ｌ，２９Ｒ、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒ、左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒ、及び、左右一対の下段供給コンベヤ３９Ｌ，３９Ｒは、トラクタのパワーテイクオフ（ＰＴＯ）軸又は接地駆動輪２１（図１参照）を介した動力供給を受けて駆動される。 Furthermore, the seedling row separating and supplying device 13A receives the paper tube seedlings 7 conveyed from the pair of left and right planting conveying conveyors 37L and 37R, and supplies the received paper tube seedlings 7 to the seedling planting device 15. Supply conveyors 39L, 39R are provided. A pair of left and right receiving conveyors 29L, 29R, a pair of left and right upper supply conveyors 35L, 35R, a pair of left and right planting conveyors 37L, 37R, and a pair of left and right lower supply conveyors 39L, 39R are power take-off (PTO) of the tractor. It is driven by a power supply via shafts or ground drive wheels 21 (see FIG. 1).
　左右一対の受入コンベヤ２９Ｌ，２９Ｒは、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒと、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒから搬送される列状苗５を受け取り搬送する左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒと、を備える。左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒは、互いに直列に配置され、搬送方向が互いに離間する方向（背離方向）になるように回転し、分離された列状苗５を左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒへ搬送する。左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒは、第１コンベヤローラ４１Ｌ，４１Ｒと、第２コンベヤローラ４２Ｌ，４２Ｒと、環状に掛け回された、ゴム、ポリウレタン等のクッション性を有する材料からなる無端ベルト４３Ｌ，４３Ｒ（ベルト）と、を備える。 The pair of left and right receiving conveyors 29L, 29R includes a pair of left and right first seedling feeding conveyors 31L, 31R and a pair of right and left first seedling feeding conveyors 31L, 31R for receiving and conveying row seedlings 5 conveyed from the pair of left and right first seedling feeding conveyors 31L, 31R. 2 seedling feeding conveyors 33L and 33R are provided. The pair of left and right first seedling feed conveyors 31L and 31R are arranged in series with each other and rotate so that the conveying direction is the direction away from each other (separation direction), and the separated seedlings 5 are transferred to the second pair of left and right seedlings. The seedlings are conveyed to the seedling feeding conveyors 33L and 33R. A pair of left and right first seedling feeding conveyors 31L, 31R are made of a cushioning material such as rubber, polyurethane, etc., which are looped around first conveyor rollers 41L, 41R and second conveyor rollers 42L, 42R. Endless belts 43L and 43R (belts) are provided.
　図３乃至図５を参照すると、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの無端ベルト４３Ｌ，４３Ｒには、その搬送面に、紙筒苗７を保持する、断面視四角形状の複数の突起４４（分離位置調整手段）が設けられる。突起４４は、無端ベルト４３Ｌ，４３Ｒの幅方向へ延びる一条の突起であり（図３参照）、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの搬送方向に沿って所定の間隔をあけて設けられる（図４及び図５参照）。第１実施形態では、突起４４は、１つの紙筒苗７を保持可能な間隔をあけて設けられる。 Referring to FIGS. 3 to 5, endless belts 43L and 43R of the pair of left and right first seedling feeding conveyors 31L and 31R have a plurality of rectangular projections in cross section for holding the paper tube seedlings 7 on their conveying surfaces. 44 (separation position adjusting means) is provided. The protrusion 44 is a single protrusion extending in the width direction of the endless belts 43L, 43R (see FIG. 3), and is provided at a predetermined interval along the conveying direction of the pair of left and right first seedling feeding conveyors 31L, 31R. (See Figures 4 and 5). In the first embodiment, the protrusions 44 are provided at intervals that can hold one paper tube seedling 7 .
　左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒは、搬送方向が互いに離間する方向（背離方向）になるように回転し、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの送出端に連接されるようにして、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒに対して直列に配置される。図４に示すように、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒは、第１乃至第５コンベヤローラ４５Ｌ乃至４９Ｌ，４５Ｒ乃至４９Ｒと、ゴム、ポリウレタン等のクッション性を有する材料からなる無端ベルト５０Ｌ，５０Ｒ（ベルト）と、を備える。 The pair of left and right second seedling feed conveyors 33L, 33R rotates so that the conveying direction is in a direction away from each other (separation direction), and is connected to the delivery ends of the pair of left and right first seedling feed conveyors 31L, 31R. , and arranged in series with respect to the pair of left and right first seedling feeding conveyors 31L and 31R. As shown in FIG. 4, the pair of left and right second seedling feeding conveyors 33L and 33R includes first to fifth conveyor rollers 45L to 49L and 45R to 49R and an endless belt made of a cushioning material such as rubber or polyurethane. 50L and 50R (belts) are provided.
　無端ベルト５０Ｌ，５０Ｒは、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの第２コンベヤローラ４２Ｌ，４２Ｒに隣接して配置される第１コンベヤローラ４５Ｌ，４５Ｒと、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒに隣接して配置される第２コンベヤローラ４６Ｌ，４６Ｒと、第２コンベヤローラ４２Ｌ，４２Ｒよりも下方に配置される第３コンベヤローラ４７Ｌ，４７Ｒと、第１コンベヤローラ４５Ｌ，４５Ｒの下方に配置される第４コンベヤローラ４８Ｌ，４８Ｒと、に環状に掛け回される。 The endless belts 50L, 50R comprise first conveyor rollers 45L, 45R arranged adjacent to the second conveyor rollers 42L, 42R of the pair of left and right first seedling feed conveyors 31L, 31R, and the pair of left and right upper supply conveyors 35L, Second conveyor rollers 46L, 46R arranged adjacent to 35R, third conveyor rollers 47L, 47R arranged below the second conveyor rollers 42L, 42R, and below the first conveyor rollers 45L, 45R It is looped around the arranged fourth conveyor rollers 48L and 48R.
　第５コンベヤローラ４９Ｌ，４９Ｒは、無端ベルト５０Ｌ，５０Ｒを折り返すように、即ち、第１コンベヤローラ４５Ｌ，４５Ｒと第４コンベヤローラ４８Ｌ，４８Ｒとの間に配置され、かつ、第１コンベヤローラ４５Ｌ，４５Ｒ及び第４コンベヤローラ４８Ｌ，４８Ｒの配置位置より内側（第２コンベヤローラ４６Ｌ，４６Ｒ及び第３コンベヤローラ４７Ｌ，４７Ｒ寄り）に配置され、無端ベルト５０Ｌ，５０Ｒの表面（搬送面）に接触されている。 The fifth conveyor rollers 49L, 49R are arranged so as to turn back the endless belts 50L, 50R, that is, between the first conveyor rollers 45L, 45R and the fourth conveyor rollers 48L, 48R, and the first conveyor rollers 45L. , 45R and the fourth conveyor rollers 48L, 48R (near the second conveyor rollers 46L, 46R and the third conveyor rollers 47L, 47R), and contact the surfaces (conveyance surfaces) of the endless belts 50L, 50R. It is
　左右一対の上段供給コンベヤ３５Ｌ，３５Ｒは、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの送出端に隣接して配置され、上下方向へ延びる左右一対の無端ベルト５２，５３によって構成される。左右一対の上段供給コンベヤ３５Ｌ，３５Ｒは、左右一対の受入コンベヤ２９Ｌ，２９Ｒ（左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒ）から搬送される列状苗５の先頭の紙筒苗７を、順次挟み込んで下方向（図４における図の下側）へ搬送する。左右一対の無端ベルト５２，５３は、ゴム、ポリウレタン等のクッション性を有する材料からなる。 The pair of left and right upper supply conveyors 35L, 35R are arranged adjacent to the delivery ends of the pair of left and right second seedling feeding conveyors 33L, 33R, and are composed of a pair of left and right endless belts 52, 53 extending in the vertical direction. The pair of left and right upper supply conveyors 35L, 35R sequentially feeds the leading paper tube seedlings 7 of the row seedlings 5 conveyed from the pair of left and right receiving conveyors 29L, 29R (the pair of left and right second seedling feeding conveyors 33L, 33R). It is sandwiched and conveyed downward (downward in the drawing in FIG. 4). The pair of left and right endless belts 52 and 53 are made of a cushioning material such as rubber or polyurethane.
　左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒは、その一端側（紙筒苗７の受入側）が左右一対の上段供給コンベヤ３５Ｌ，３５Ｒの下方に配置され、互いに近接する方向へ延びるようにして設けられる。左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒは、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒから受け取った紙筒苗７を、左右一対の下段供給コンベヤ３９Ｌ，３９Ｒへ搬送する。 The pair of left and right planting conveying conveyors 37L, 37R are arranged so that one end side thereof (the receiving side of the paper tube seedling 7) is arranged below the pair of left and right upper supply conveyors 35L, 35R and extends in a direction approaching each other. be done. The pair of left and right planting conveyors 37L, 37R conveys the paper tube seedlings 7 received from the pair of left and right upper supply conveyors 35L, 35R to the pair of left and right lower supply conveyors 39L, 39R.
　左右一対の下段供給コンベヤ３９Ｌ，３９Ｒは、左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒの送出端に隣接して配置され、上下方向へ延びる左右一対の無端ベルト５４，５５によって構成される。左右一対の下段供給コンベヤ３９Ｌ，３９Ｒは、左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒから搬送される紙筒苗７を、順次挟み込んで苗植付装置１５へ供給する。左右一対の無端ベルト５４，５５は、ゴム、ポリウレタン等のクッション性を有する材料からなる。 The pair of left and right lower supply conveyors 39L, 39R are arranged adjacent to the delivery ends of the pair of left and right planted conveying conveyors 37L, 37R, and are composed of a pair of left and right endless belts 54, 55 extending in the vertical direction. The pair of left and right lower supply conveyors 39L and 39R sequentially sandwich the paper tube seedlings 7 transported from the pair of left and right planting transport conveyors 37L and 37R and supply them to the seedling planting device 15 . The pair of left and right endless belts 54 and 55 are made of a cushioning material such as rubber or polyurethane.
　図３及び図６に示すように、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの第１コンベヤローラ４１Ｌ，４１Ｒ及び第２コンベヤローラ４２Ｌ，４２Ｒと、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ及び第５コンベヤローラ４９Ｌ，４９Ｒとは、可動ローラとして１つの連結枠５６に回転可能に設けられる。連結枠５６は、これらの可動ローラを一体的に支持し、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの可動ローラ以外の固定ローラを支持する枠体（図示せず）に対して、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの搬送方向に沿って移動可能に取り付けられる。 As shown in FIGS. 3 and 6, first conveyor rollers 41L, 41R and second conveyor rollers 42L, 42R of a pair of left and right first seedling feed conveyors 31L, 31R, and a pair of left and right second seedling feed conveyors 33L, 33R The first conveyor rollers 45L, 45R and the fifth conveyor rollers 49L, 49R are rotatably provided on one connecting frame 56 as movable rollers. The connecting frame 56 integrally supports these movable rollers, and is connected to a frame body (not shown) that supports the fixed rollers other than the movable rollers of the pair of left and right second seedling feeding conveyors 33L and 33R. 1st seedling feed conveyors 31L and 31R are attached so as to be movable along the conveying direction.
　苗列分離供給装置１３Ａは、連結枠５６を左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの搬送方向に沿って移動させる移動手段（分離位置調整手段）を備える。第１実施形態における移動手段は、連結枠５６（可動ローラ）を左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの搬送方向に沿って移動させるアクチュエータを備える。第１実施形態において、アクチュエータは、一端側が連結枠５６と連結される電動シリンダ５８である。 The seedling row separating and supplying device 13A includes moving means (separating position adjusting means) for moving the connecting frame 56 along the conveying direction of the pair of left and right first seedling feeding conveyors 31L and 31R. The moving means in the first embodiment includes an actuator that moves the connecting frame 56 (movable roller) along the conveying direction of the pair of left and right first seedling feeding conveyors 31L and 31R. In the first embodiment, the actuator is an electric cylinder 58 whose one end side is connected with the connecting frame 56 .
　図６（ｂ）に示すように、電動シリンダ５８が伸長動作すると、連結枠５６が第１苗送りコンベヤ３１Ｒ側へ移動し、この移動に伴って、連結枠５６に連結された左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの第１コンベヤローラ４１Ｌ，４１Ｒ及び第２コンベヤローラ４２Ｌ，４２Ｒ、並びに、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ及び第５コンベヤローラ４９Ｌ，４９Ｒがともに移動する。このようにして、左右一対の受入コンベヤ２９Ｌ，２９Ｒ（第１苗送りコンベヤ３１Ｌ，３１Ｒ）が互いに隣接する隣接位置Ｐ（図６（ａ）参照）を、隣接位置Ｐ１（図６（ｂ）参照）に変位させることができる。 As shown in FIG. 6(b), when the electric cylinder 58 is extended, the connecting frame 56 moves toward the first seedling feed conveyor 31R. 1st conveyor rollers 41L, 41R and 2nd conveyor rollers 42L, 42R of 1 seedling feeding conveyors 31L, 31R, and 1st conveyor rollers 45L, 45R and 5th conveyor rollers of a pair of left and right second seedling feeding conveyors 33L, 33R 49L and 49R move together. In this way, the pair of left and right receiving conveyors 29L, 29R (first seedling feeding conveyors 31L, 31R) are moved from adjacent positions P (see FIG. 6(a)) to adjacent positions P1 (see FIG. 6(b)). ).
　一方、図６（ｃ）に示すように、電動シリンダ５８が収縮動作すると、連結枠５６が第１苗送りコンベヤ３１Ｌ側に移動し、この移動に伴って、連結枠５６に連結された左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの第１コンベヤローラ４１Ｌ，４１Ｒ及び第２コンベヤローラ４２Ｌ，４２Ｒ、並びに、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ及び第５コンベヤローラ４９Ｌ，４９Ｒがともに移動する。このようにして、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐ（図６（ａ）参照）を、隣接位置Ｐ２（図６（ｃ）参照）に変位させることができる。 On the other hand, as shown in FIG. 6(c), when the electric cylinder 58 is retracted, the connecting frame 56 moves toward the first seedling feeding conveyor 31L, and along with this movement, the left and right pair of frames connected to the connecting frame 56 move. The first conveyor rollers 41L, 41R and the second conveyor rollers 42L, 42R of the first seedling feed conveyors 31L, 31R, and the pair of left and right second seedling feed conveyors 33L, 33R, the first conveyor rollers 45L, 45R and the fifth Conveyor rollers 49L and 49R move together. In this way, the adjacent position P (see FIG. 6(a)) of the pair of left and right receiving conveyors 29L, 29R can be displaced to the adjacent position P2 (see FIG. 6(c)).
　このとき、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ（第１可動ローラ）と、無端ベルト５０Ｌ，５０Ｒを折り返す第５コンベヤローラ４９Ｌ，４９Ｒ（第２可動ローラ）と、を一体的に移動させることにより、無端ベルト５０Ｌ，５０Ｒの全長を変化させることなく、これらのローラ４５Ｌ，４５Ｒ，４９Ｌ，４９Ｒを移動させることができる。 At this time, the first conveyor rollers 45L and 45R (first movable rollers) of the pair of left and right second seedling feeding conveyors 33L and 33R, and the fifth conveyor rollers 49L and 49R (second movable rollers) for folding back the endless belts 50L and 50R. By integrally moving , these rollers 45L, 45R, 49L, 49R can be moved without changing the total length of the endless belts 50L, 50R.
（苗植付装置）
　図１に示すように、苗植付装置１５は、本体フレーム９の下部に設けられて圃場に植付溝（図示せず）を形成する溝切器６１と、溝切器６１によって形成された植付溝へ紙筒苗７を植え付ける植付ディスク６３と、本体フレーム９に設けられ、紙筒苗７を圃場に固定する左右一対の鎮圧輪６５（図示では、右側の鎮圧輪６５Ｒのみを示す）と、を備える。苗植付装置１５は、２枚のゴム板からなる植付ディスク６３による従来の挟み植付方式（一例として、特開平１－２８９４０６参照）であり、苗列分離供給装置１３Ａの左右一対の下段供給コンベヤ３９Ｌ，３９Ｒ（図４参照）から搬送された紙筒苗７を、２枚のゴム板によって挟み込んで圃場の植付溝へ投下する。植付溝へ投下された紙筒苗７は、左右一対の鎮圧輪６５によって圃場に固定される。 (Seedling planting device)
As shown in FIG. 1, the seedling planting device 15 is formed by a groove cutter 61 which is provided in the lower part of the body frame 9 and forms a planting groove (not shown) in the field, and the groove cutter 61. A planting disc 63 for planting the seedling paper tube 7 in the planting groove, and a pair of left and right pressing wheels 65 provided on the main body frame 9 and fixing the paper tube seedling 7 in the field (in the figure, only the right pressing wheel 65R is shown). ) and The seedling planting device 15 is a conventional sandwich planting method (see Japanese Patent Application Laid-Open No. 1-289406 as an example) using planting discs 63 made of two rubber plates, and is a pair of lower stages of the seedling row separating and feeding device 13A. Paper tube seedlings 7 conveyed from supply conveyors 39L and 39R (see FIG. 4) are sandwiched between two rubber plates and dropped into a planting groove in a field. The paper tube seedling 7 dropped into the planting groove is fixed to the field by a pair of left and right pressing wheels 65 .
　次に、第１実施形態に係る苗列分離供給装置１３Ａによる列状苗５の分離供給動作を説明する。
　図７に示すように、苗箱１９に収容された連結苗群３（図１及び図２参照）を列状に分割し、分割した列状苗５を苗列分離供給装置１３Ａの左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒ及び左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒに載置する。このとき、列状苗５の一部の紙筒苗７（列状苗５の中央部付近の紙筒苗７）は、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの突起４４，４４（分離位置調整手段）間で保持され、かつ、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒは、その搬送方向が互いに離間する方向（背離方向）になるように回転しているので、載置された列状苗５の分離位置は、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐ付近に調整される。 Next, the operation of separating and feeding row seedlings 5 by the row seedling separation and feeding device 13A according to the first embodiment will be described.
As shown in FIG. 7, a group of connected seedlings 3 (see FIGS. 1 and 2) housed in a seedling box 19 is divided into rows, and the divided row-shaped seedlings 5 are placed in a pair of left and right seedling row separating and feeding devices 13A. The seedlings are placed on the first seedling feeding conveyors 31L, 31R and the pair of left and right second seedling feeding conveyors 33L, 33R. At this time, the paper tube seedlings 7 that are part of the row seedlings 5 (the paper tube seedlings 7 near the center of the row seedlings 5) are separated from the projections 44, 44 (separated The pair of left and right first seedling feeding conveyors 31L and 31R are rotated so that their conveying directions are separated from each other (separation direction). The separation position of the row seedlings 5 is adjusted near the adjacent position P of the pair of left and right receiving conveyors 29L and 29R.
　そして、左右に分離された各列状苗５は、一対の第２苗送りコンベヤ３３Ｌ，３３Ｒを介して左右一対の上段供給コンベヤ３５Ｌ，３５Ｒへ搬送される。搬送された列状苗５は、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒを通過する過程で個々の紙筒苗７に分離される。分離された紙筒苗７は、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒから左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒへ搬送される。左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒは、紙筒苗７を左右一対の下段供給コンベヤ３９Ｌ，３９Ｒへ搬送し、左右一対の下段供給コンベヤ３９Ｌ，３９Ｒは、受け取った紙筒苗７を苗植付装置１５の植付ディスク６３へ受け渡す。 Then, each row-shaped seedling 5 separated to the left and right is conveyed to a pair of left and right upper supply conveyors 35L and 35R via a pair of second seedling feeding conveyors 33L and 33R. The conveyed row seedlings 5 are separated into individual paper tube seedlings 7 in the process of passing through a pair of left and right upper supply conveyors 35L and 35R. The separated paper tube seedlings 7 are conveyed from a pair of left and right upper supply conveyors 35L, 35R to a pair of left and right planting conveyors 37L, 37R. The pair of left and right planting conveyers 37L, 37R transports the seedling paper tube 7 to the pair of left and right lower supply conveyors 39L, 39R, and the pair of left and right lower supply conveyors 39L, 39R plant the seedling paper tube 7 received. Transfer to the planting disk 63 of the planting device 15 .
　ここで、従来の苗列分離供給装置では、紙筒苗同士の粘着力、列状苗の載置位置のずれ等に起因して、列状苗の分離位置が左右に偏ることがあった。分離位置が偏った場合、次の列状苗を載置する際に、列状苗が左側の受入コンベヤ又は右側の受入コンベヤに残存することになる。 Here, in the conventional row seedling separation and supply device, the separation position of the row seedlings was sometimes biased to the left and right due to the adhesive force between the paper tube seedlings, the deviation of the placement position of the row seedlings, and the like. If the separation position is biased, when the next row of seedlings is placed, the row of seedlings will remain on the left receiving conveyor or the right receiving conveyor.
　そこで、第１実施形態では、電動シリンダ５８（移動手段）によって、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐを変位させることで、列状苗５の分離位置を調整するように構成した。 Therefore, in the first embodiment, the separation position of the row seedlings 5 is adjusted by displacing the adjacent position P of the pair of left and right receiving conveyors 29L and 29R with the electric cylinder 58 (moving means).
　具体的には、図８に示すように、列状苗５が第１苗送りコンベヤ３１Ｒ及び苗送りコンベヤ３３Ｒ側に残存している場合、電動シリンダ５８を伸長させることで、連結枠５６を左右一対の第１苗送りコンベヤ３１Ｒの搬送方向側へ移動させる。これにより、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの第１コンベヤローラ４１Ｌ，４１Ｒ及び第２コンベヤローラ４２Ｌ，４２Ｒ、並びに、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ及び第５コンベヤローラ４９Ｌ，４９Ｒがともに移動し（図８の矢印参照）、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐが隣接位置Ｐ１に変位する。 Specifically, as shown in FIG. 8, when the row seedlings 5 remain on the side of the first seedling feeding conveyor 31R and the seedling feeding conveyor 33R, the connecting frame 56 is moved left and right by extending the electric cylinder 58. It is moved to the transport direction side of the pair of first seedling feeding conveyors 31R. Thereby, the first conveyor rollers 41L, 41R and the second conveyor rollers 42L, 42R of the pair of left and right first seedling feed conveyors 31L, 31R, and the first conveyor rollers 45L of the pair of left and right second seedling feed conveyors 33L, 33R , 45R and the fifth conveyor rollers 49L, 49R move together (see arrows in FIG. 8), and the adjacent position P between the pair of left and right receiving conveyors 29L, 29R is displaced to the adjacent position P1.
　この状態で、列状苗５を左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒ及び左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒに載置すると、列状苗５は、移動後の隣接位置Ｐ１付近で左右に分離される。このとき、列状苗５は、第１苗送りコンベヤ３１Ｒ及び第２苗送りコンベヤ３３Ｒ側に載置される量よりも、第１苗送りコンベヤ３１Ｌ及び第２苗送りコンベヤ３３Ｌ側に載置される量が多くなる。このようにして、第１苗送りコンベヤ３１Ｌ及び第２苗送りコンベヤ３３Ｌへ供給される紙筒苗７の量を調整（増量）することができる。左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒから搬送された列状苗５は、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒによって個々の紙筒苗７に分離され、分離された紙筒苗７は、左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒ及び左右一対の下段供給コンベヤ３９Ｌ，３９Ｒを介して苗植付装置１５の植付ディスク６３へ受け渡される。 In this state, when the row seedlings 5 are placed on the pair of left and right first seedling feeding conveyors 31L and 31R and the pair of left and right second seedling feeding conveyors 33L and 33R, the row seedlings 5 are placed near the adjacent position P1 after movement. is separated into left and right. At this time, the row seedlings 5 are placed on the side of the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L more than the amount placed on the side of the first seedling feeding conveyor 31R and the second seedling feeding conveyor 33R. increase the amount of In this manner, the amount of paper tube seedlings 7 supplied to the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L can be adjusted (increased). The row seedlings 5 conveyed from the pair of left and right second seedling feeding conveyors 33L, 33R are separated into individual paper tube seedlings 7 by the pair of left and right upper supply conveyors 35L, 35R, and the separated paper tube seedlings 7 are The seedlings are transferred to the planting disk 63 of the seedling planting device 15 via a pair of left and right planting conveying conveyors 37L, 37R and a pair of left and right lower supply conveyors 39L, 39R.
　一方、図９に示すように、列状苗５が第１苗送りコンベヤ３１Ｌ及び第２苗送りコンベヤ３３Ｌ側に残存している場合、電動シリンダ５８を収縮させることで、連結枠５６を左右一対の第１苗送りコンベヤ３１Ｌの搬送方向側へ移動させる。これにより、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの第１コンベヤローラ４１Ｌ，４１Ｒ及び第２コンベヤローラ４２Ｌ，４２Ｒ、並びに、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ及び第５コンベヤローラ４９Ｌ，４９Ｒがともに移動し（図９の矢印参照）、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐが隣接位置Ｐ２に変位する。 On the other hand, as shown in FIG. 9, when the row-shaped seedlings 5 remain on the side of the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L, the electric cylinder 58 is contracted to move the connecting frame 56 into a pair of left and right. , to the conveying direction side of the first seedling feeding conveyor 31L. Thereby, the first conveyor rollers 41L, 41R and the second conveyor rollers 42L, 42R of the pair of left and right first seedling feed conveyors 31L, 31R, and the first conveyor rollers 45L of the pair of left and right second seedling feed conveyors 33L, 33R , 45R and the fifth conveyor rollers 49L, 49R move together (see arrows in FIG. 9), and the adjacent position P between the pair of left and right receiving conveyors 29L, 29R is displaced to the adjacent position P2.
　この状態で、列状苗５を左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒ及び左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒに載置すると、列状苗５は、移動後の隣接位置Ｐ２付近で左右に分離される。このとき、列状苗５は、第１苗送りコンベヤ３１Ｌ及び第２苗送りコンベヤ３３Ｌ側に載置される量よりも、第１苗送りコンベヤ３１Ｒ及び第２苗送りコンベヤ３３Ｒ側に載置される量が多くなる。このようにして、第１苗送りコンベヤ３１Ｒ及び第２苗送りコンベヤ３３Ｒへ供給される紙筒苗７の量を調整（増量）することができる。左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒから搬送された列状苗５は、左右一対の上段供給コンベヤ３５Ｌ，３５Ｒによって個々の紙筒苗７に分離され、分離された紙筒苗７は、左右一対の植付搬送コンベヤ３７Ｌ，３７Ｒ及び左右一対の下段供給コンベヤ３９Ｌ，３９Ｒを介して苗植付装置１５の植付ディスク６３へ受け渡される。 In this state, when the row seedlings 5 are placed on the pair of left and right first seedling feeding conveyors 31L and 31R and the pair of left and right second seedling feeding conveyors 33L and 33R, the row seedlings 5 are placed near the adjacent position P2 after movement. is separated into left and right. At this time, the row seedlings 5 are placed on the first seedling feed conveyor 31R and the second seedling feed conveyor 33R side more than the amount placed on the first seedling feed conveyor 31L and the second seedling feed conveyor 33L side. increase the amount of In this way, the amount of paper tube seedlings 7 supplied to the first seedling feeding conveyor 31R and the second seedling feeding conveyor 33R can be adjusted (increased). The row seedlings 5 conveyed from the pair of left and right second seedling feeding conveyors 33L, 33R are separated into individual paper tube seedlings 7 by the pair of left and right upper supply conveyors 35L, 35R, and the separated paper tube seedlings 7 are The seedlings are transferred to the planting disk 63 of the seedling planting device 15 via a pair of left and right planting conveying conveyors 37L, 37R and a pair of left and right lower supply conveyors 39L, 39R.
　第１実施形態に係る苗列分離供給装置１３Ａを適用した移植機１は、次のような作用効果を得ることができる。
　列状苗５を苗列分離供給装置１３Ａの左右一対の受入コンベヤ２９Ｌ，２９Ｒ（第１苗送りコンベヤ３１Ｌ，３１Ｒ及び第２苗送りコンベヤ３３Ｌ，３３Ｒ）に載置する際、列状苗５が第１苗送りコンベヤ３１Ｌ及び第２苗送りコンベヤ３３Ｌ側、又は、第１苗送りコンベヤ３１Ｒ及び第２苗送りコンベヤ３３Ｒ側に偏っている場合、紙筒苗７を苗植付装置１５へ均等に供給することができず、紙筒苗７の供給が不足する虞がある。 The transplanter 1 to which the seedling row separating and supplying device 13A according to the first embodiment is applied can obtain the following effects.
When the row seedlings 5 are placed on the pair of left and right receiving conveyors 29L and 29R (the first seedling feeding conveyors 31L and 31R and the second seedling feeding conveyors 33L and 33R) of the seedling row separating and supplying device 13A, the row seedlings 5 are When biased toward the first seedling feeding conveyor 31L and the second seedling feeding conveyor 33L side, or the first seedling feeding conveyor 31R and the second seedling feeding conveyor 33R side, the paper tube seedlings 7 are evenly distributed to the seedling planting device 15. There is a possibility that the supply of paper tube seedlings 7 will be insufficient.
　そこで、第１実施形態では、電動シリンダ５８（移動手段）によって、連結枠５６を左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの搬送方向に沿って移動させて、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐを隣接位置Ｐ１又は隣接位置Ｐ２に変位させることにより、列状苗５の分離位置、即ち、左右に分離する量を調整する。これにより、列状苗５の偏りが抑制され、紙筒苗７を苗植付装置１５に均等に供給することが可能であり、紙筒苗７の供給不足を回避することができる。 Therefore, in the first embodiment, the electric cylinder 58 (moving means) is used to move the connecting frame 56 along the conveying direction of the pair of left and right first seedling feed conveyors 31L and 31R, thereby moving the pair of left and right receiving conveyors 29L and 29R. By displacing the adjacent position P to the adjacent position P1 or the adjacent position P2, the separation position of the row seedlings 5, that is, the amount of separation to the left and right is adjusted. As a result, the unevenness of the row-shaped seedlings 5 can be suppressed, the paper tube seedlings 7 can be evenly supplied to the seedling planting device 15, and the supply shortage of the paper tube seedlings 7 can be avoided.
　また、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒは、搬送面に、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの搬送方向に沿って紙筒苗７の幅と略同等の間隔をあけて設けれられた突起４４（分離位置調整手段）を備えているので、紙筒苗７が隣接する突起４４，４４間で確実に保持される。これにより、列状苗５の紙筒苗７同士の粘着力が強くても、列状苗５を左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐで適切に分離させることができる、換言すれば、列状苗５の分離位置を左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐに調整することが可能であり、列状苗５の偏りを抑制することができる。 In addition, the pair of left and right first seedling feeding conveyors 31L, 31R are arranged on the conveying surface at intervals substantially equal to the width of the paper tube seedlings 7 along the conveying direction of the pair of left and right first seedling feeding conveyors 31L, 31R. Since the provided protrusions 44 (separation position adjusting means) are provided, the paper tube seedlings 7 are reliably held between the adjacent protrusions 44 , 44 . As a result, even if the adhesive force between the paper tube seedlings 7 of the row seedlings 5 is strong, the row seedlings 5 can be separated appropriately at the adjacent position P between the pair of left and right receiving conveyors 29L and 29R, in other words. , the separation position of the row seedlings 5 can be adjusted to the adjacent position P of the pair of left and right receiving conveyors 29L, 29R, and bias of the row seedlings 5 can be suppressed.
　第１実施形態は、以下のように構成することができる。
　第１実施形態では、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒを、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの間に設けて苗列分離供給装置１３Ａを構成したが、例えば、図１０（ａ）に示すように、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒを２組設けてもよく、２組以上設けてもよい。
　また、第１実施形態では、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの無端ベルト４３Ｌ，４３Ｒを、２つのコンベヤローラ（第１コンベヤローラ４１Ｌ，４１Ｒ及び第２コンベヤローラ４２Ｌ，４２Ｒ）に掛け回しているが、図１０（ｂ）に示すように、３つのコンベヤローラに掛け回すようにしてもよく、コンベヤローラの個数は適宜変更することができる。コンベヤの個数が多くなると部品点数は多くなる一方、周長の小さいベルトで装置を構成することが可能であり、消耗部品であるベルトの破損があった場合、ベルトの交換を比較的容易に行うことができる。また、適宜、実機として有利な構成を選択することができる。
　また、第１実施形態では、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒに複数の突起４４を設けたが、突起４４は、紙筒苗７の保持力を高め、列状苗５を中央付近で分離できるようにするものであればよい。例えば、図１１（ａ）に示すように、隣接する突起４４，４４間の間隔を狭めるようにしもてよく、また、２つ、３つ等の複数個の紙筒苗７を保持できるように、突起４４の形成間隔を適宜変更してもよい。さらに、突起４４は、断面四角形状であるが、図１１（ｂ）に示すように、断面三角形状としもよく、又は、台形等の他の形状としてもよい。 The first embodiment can be configured as follows.
In the first embodiment, the pair of left and right first seedling feeding conveyors 31L and 31R is provided between the pair of left and right second seedling feeding conveyors 33L and 33R to configure the seedling row separating and feeding device 13A. As shown in (a), two pairs of left and right first seedling feeding conveyors 31L and 31R may be provided, or two or more pairs may be provided.
Further, in the first embodiment, the endless belts 43L, 43R of the pair of left and right first seedling feeding conveyors 31L, 31R are hung on two conveyor rollers ( first conveyor rollers 41L, 41R and second conveyor rollers 42L, 42R). Although it is rotated, as shown in FIG. 10(b), it may be wound around three conveyor rollers, and the number of conveyor rollers can be changed as appropriate. As the number of conveyors increases, the number of parts increases, but it is possible to configure the device with a belt with a small circumference length, and if the belt, which is a consumable part, is damaged, it is relatively easy to replace the belt. be able to. In addition, it is possible to appropriately select a configuration that is advantageous as an actual machine.
In the first embodiment, a plurality of protrusions 44 are provided on the pair of right and left first seedling feeding conveyors 31L and 31R. Anything that can be separated by For example, as shown in FIG. 11(a), the distance between adjacent projections 44, 44 may be narrowed, and a plurality of paper tube seedlings 7, such as two or three, may be held. , the formation intervals of the protrusions 44 may be changed as appropriate. Furthermore, although the protrusion 44 has a square cross section, it may have a triangular cross section as shown in FIG. 11(b), or may have another shape such as a trapezoid.
（第２実施形態）
　次に、図１２乃び図１３を参照して第２実施形態を説明する。
　第２実施形態に係る苗列分離供給装置１３Ｂは、搬送される紙筒苗７を検知する検知手段、及び電動シリンダ５８（移動手段、図３参照）の作動を制御する制御手段を備える点で、第１実施形態に係る苗列分離供給装置１３Ａと相違する。なお、第１実施形態との共通部分については、同一の称呼及び符号を用い、重複する説明を省略する。 (Second embodiment)
Next, a second embodiment will be described with reference to FIGS. 12 and 13. FIG.
The seedling row separation and supply device 13B according to the second embodiment includes a detection means for detecting the transported paper tube seedlings 7 and a control means for controlling the operation of the electric cylinder 58 (moving means, see FIG. 3). , is different from the seedling row separating and supplying device 13A according to the first embodiment. Note that the same designations and reference numerals are used for common parts with the first embodiment, and redundant explanations are omitted.
　図１２に示すように、苗列分離供給装置１３Ｂは、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒ上の列状苗５を検知する検知手段７１Ｌ，７１Ｒと、検知手段７１Ｌ，７１Ｒの検知に基づいて電動シリンダ５８の作動を制御し、二方に分離された紙筒苗７の供給を調整する制御手段７３と、を備える。検知手段７１Ｌ，７１Ｒは、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの送出端近傍に配置され、検知した信号（検知信号）を制御手段７３へ送信する。制御手段７３は、検知手段７１Ｌ，７１Ｒから送信された検知信号を受信し、受信した検知信号に応じて電動シリンダ５８の作動を制御する。 As shown in FIG. 12, the seedling row separating and supplying device 13B includes detection means 71L and 71R for detecting row seedlings 5 on the pair of left and right second seedling feed conveyors 33L and 33R, and detection means 71L and 71R for detecting the row seedlings 5. A control means 73 for controlling the operation of the electric cylinder 58 based on the above and adjusting the supply of the paper tube seedlings 7 separated in two directions. The detection means 71L and 71R are arranged near the delivery end of the pair of left and right second seedling feed conveyors 33L and 33R, and transmit the detected signal (detection signal) to the control means 73 . The control means 73 receives the detection signals transmitted from the detection means 71L and 71R, and controls the operation of the electric cylinder 58 according to the received detection signals.
　次に、第２実施形態に係る苗列分離供給装置１３Ｂにおける電動シリンダ５８（移動手段、図３参照）の制御方法を説明する。
　検知手段７１Ｌ，７１Ｒは、左右一対の第２苗送りコンベヤ３３の送出端の手前側を流れる列状苗５の有無を検知し、この検知に基づいて、制御手段７３が電動シリンダ５８の作動を制御する。具体的には、図１３（ａ）に示すように、第２苗送りコンベヤ３３Ｌに列状苗５が残存していない場合、検知手段７１Ｌは、その状態を検知し、検知信号を制御手段７３へ送信する。制御手段７３は、受信した検知信号に応じて電動シリンダ５８を作動させる。これにより、電動シリンダ５８によって、連結枠５６（可動ローラ）が第１苗送りコンベヤ３１Ｒの搬送方向に沿って移動する。 Next, a control method of the electric cylinder 58 (moving means, see FIG. 3) in the seedling row separating and supplying device 13B according to the second embodiment will be described.
Detecting means 71L and 71R detect the presence or absence of row-shaped seedlings 5 flowing in front of the delivery end of the pair of left and right second seedling feeding conveyors 33, and based on this detection, the control means 73 activates the electric cylinder 58. Control. Specifically, as shown in FIG. 13(a), when there are no rows of seedlings 5 remaining on the second seedling feeding conveyor 33L, the detection means 71L detects this state, and outputs the detection signal to the control means 73. Send to The control means 73 operates the electric cylinder 58 according to the received detection signal. Thereby, the connecting frame 56 (movable roller) is moved by the electric cylinder 58 along the conveying direction of the first seedling feeding conveyor 31R.
　一方、図１３（ｂ）に示すように、第２苗送りコンベヤ３３Ｒに列状苗５が残存していない場合、検知手段７１Ｒは、その状態を検知し、検知信号を制御手段７３へ送信する。制御手段７３は、受信した検知信号に応じて電動シリンダ５８を作動させる。これにより、移動手段５８によって、連結枠５６（可動ローラ）が第１苗送りコンベヤ３１Ｌの搬送方向に沿って移動する。なお、上述の例では、検知手段７１Ｌ，７１Ｒは、列状苗５が残存していない状態を検知しているが、列状苗５が残存している状態を検知し、検知信号を制御手段７３へ送信するようにしてもよい。 On the other hand, as shown in FIG. 13(b), when no row seedlings 5 remain on the second seedling feeding conveyor 33R, the detection means 71R detects this state and transmits a detection signal to the control means 73. . The control means 73 operates the electric cylinder 58 according to the received detection signal. Thereby, the connecting frame 56 (movable roller) is moved by the moving means 58 along the conveying direction of the first seedling feeding conveyor 31L. In the above example, the detection means 71L and 71R detect the state in which the row seedlings 5 do not remain, but detect the state in which the row seedlings 5 remain, and output the detection signal to the control means. 73.
　第２実施形態に係る苗列分離供給装置１３Ｂを適用した移植機１によれば、前述した第１実施形態の作用効果に加え、次のような作用効果を得ることができる。
　第２実施形態では、検知手段７１Ｌ，７１Ｒは、第２苗送りコンベヤ３３Ｌ，３３Ｒに列状苗５が残存していない状態を検知し、検知した信号を制御手段７３へ送信する。制御手段７３は、検知手段７１Ｌ，７１Ｒの検知信号に応じて電動シリンダ５８（移動手段）の作動を制御し、一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐを変位位置Ｐ１又は変位位置Ｐ２に変位させる。これにより、列状苗５の分離位置、延いては、紙筒苗７の供給量が調整され、列状苗５を左右に均等に供給することが可能であり、列状苗５の偏りを抑制することができる。 According to the transplanter 1 to which the seedling row separating and supplying device 13B according to the second embodiment is applied, the following effects can be obtained in addition to the effects of the first embodiment described above.
In the second embodiment, the detectors 71L and 71R detect a state in which the row seedlings 5 do not remain on the second seedling feeding conveyors 33L and 33R, and transmit the detected signals to the controller 73. FIG. The control means 73 controls the operation of the electric cylinder 58 (moving means) according to the detection signals of the detection means 71L and 71R, and displaces the adjacent position P between the pair of receiving conveyors 29L and 29R to the displacement position P1 or the displacement position P2. Let As a result, the separation position of the row seedlings 5 and the supply amount of the paper tube seedlings 7 are adjusted, and the row seedlings 5 can be evenly supplied to the left and right, and the bias of the row seedlings 5 can be eliminated. can be suppressed.
（第３実施形態）
　次に、図１４を参照して第３実施形態を説明する。
　第３実施形態に係る苗列分離供給装置１３Ｃは、苗列分離供給装置１３Ａの左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒを備えていない点で、第１実施形態に係る苗列分離供給装置１３Ａと相違する。なお、第１実施形態との共通部分については、同一の称呼及び符号を用い、重複する説明を省略する。 (Third embodiment)
Next, a third embodiment will be described with reference to FIG.
The seedling row separation supply device 13C according to the third embodiment does not include the left and right pair of first seedling feeding conveyors 31L and 31R of the seedling row separation supply device 13A. 13A is different. Note that the same designations and reference numerals are used for common parts with the first embodiment, and redundant explanations are omitted.
　第３実施形態に係る苗列分離供給装置１３Ｃにおける左右一対の受入コンベヤ２９Ｌ，２９Ｒは、第１実施形態に係る苗列分離供給装置１３Ａの左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒを備えておらず、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒのみから構成される。第３実施形態では、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒは、互いに隣接して配置される。連結枠５６（図３参照）には、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ及び第５コンベヤローラ４９Ｌ，４９Ｒのみが連結される。 The pair of left and right receiving conveyors 29L and 29R in the seedling row separation and supply device 13C according to the third embodiment includes the left and right pair of first seedling feeding conveyors 31L and 31R of the seedling row separation and supply device 13A according to the first embodiment. It is composed only of a pair of left and right second seedling feeding conveyors 33L and 33R. In the third embodiment, the first conveyor rollers 45L, 45R of the pair of left and right second seedling feeding conveyors 33L, 33R are arranged adjacent to each other. Only the first conveyor rollers 45L, 45R and the fifth conveyor rollers 49L, 49R of the pair of left and right second seedling feeding conveyors 33L, 33R are connected to the connecting frame 56 (see FIG. 3).
　左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの搬送面には、紙筒苗７を保持する断面視四角形状の複数の突起７５（分離位置調整手段）が設けられる。複数の突起７５は、無端ベルト５０Ｌ，５０Ｒの幅方向に延びる一条の突起であり、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの搬送方向に沿って所定の間隔を置いて設けれられる。第３実施形態では、突起７５は、１つの紙筒苗７を保持できるように間隔を置いて設けられる。 A plurality of rectangular projections 75 (separation position adjusting means) for holding the paper tube seedlings 7 are provided on the conveying surfaces of the pair of left and right second seedling feeding conveyors 33L and 33R. The plurality of protrusions 75 are single protrusions extending in the width direction of the endless belts 50L, 50R, and are provided at predetermined intervals along the conveying direction of the pair of left and right second seedling feeding conveyors 33L, 33R. In the third embodiment, the protrusions 75 are provided at intervals so as to hold one paper tube seedling 7 .
　ここで、電動シリンダ５８（移動手段）が作動して、連結枠５６が左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの搬送方向に沿って移動すると、左右一対の苗第２送りコンベヤ３３Ｌ，３３Ｒの第１コンベヤローラ４５Ｌ，４５Ｒ（第１可動ローラ）及び第５コンベヤローラ４９Ｌ，４９Ｒ（第２可動ローラ）が移動して、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの隣接位置Ｐが変位する。 Here, when the electric cylinder 58 (moving means) is actuated to move the connecting frame 56 along the conveying direction of the pair of left and right second seedling feed conveyors 33L, 33R, the pair of left and right second seedling feed conveyors 33L, 33R move. The first conveyor rollers 45L, 45R (first movable rollers) and the fifth conveyor rollers 49L, 49R (second movable rollers) move, and the adjacent position P of the pair of left and right second seedling feeding conveyors 33L, 33R is displaced. do.
　第３実施形態に係る苗列分離供給装置１３Ｃを適用した移植機１によれば、前述した第１実施形態の作用効果に加え、次のような作用効果を得ることができる。
　第３実施形態では、左右一対の受入コンベヤ２９Ｌ，２９Ｒが、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒのみから構成されるので、部品点数が減少し、苗列分離供給装置１３Ｃを簡素化することができる。他方、第３実施形態では、第１形態及び第２形態よりも周長の大きい、突起付きのベルトが必要となるが、適宜、実機として有利な形態を選択することができる。 According to the transplanter 1 to which the seedling row separating and supplying device 13C according to the third embodiment is applied, the following effects can be obtained in addition to the effects of the first embodiment described above.
In the third embodiment, the pair of left and right receiving conveyors 29L, 29R is composed only of the pair of left and right second seedling feed conveyors 33L, 33R, so the number of parts is reduced and the seedling row separating and supplying device 13C is simplified. be able to. On the other hand, in the third embodiment, a belt with projections having a larger circumferential length than those in the first and second embodiments is required.
　なお、前述した苗列分離供給装置は、以下のように構成することができる。
　左右一対の受入コンベヤ２９Ｌ，２９Ｒが一対の第１苗送りコンベヤ３１Ｌ，３１Ｒを備える苗列分離供給装置においては、図１５に示すように、一対の第１苗送りコンベヤ３１Ｌ，３１Ｒがその搬送方向に沿って移動しないように、即ち、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐを変位させないように構成することができる。
　この場合、紙筒苗７は、一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの突起４４，４４（分離位置調整手段）間で確実に保持されているので、紙筒苗７同士の粘着力が強くても、列状苗５は左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐで適切に分離される。換言すれば、分離位置調整手段は、列状苗５の分離位置を左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐに調整することができる。
　この形態では、左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐを変位させることはできないものの、部品点数が減少するので苗列分離供給装置を簡素化することができる。また、適宜、実機として有利な形態を選択することができる。 The above-described seedling row separating and supplying device can be configured as follows.
In the seedling row separating and feeding device in which the pair of left and right receiving conveyors 29L and 29R includes a pair of first seedling feeding conveyors 31L and 31R, as shown in FIG. , that is, the adjacent position P of the pair of left and right receiving conveyors 29L and 29R is not displaced.
In this case, since the paper tube seedlings 7 are securely held between the projections 44, 44 (separation position adjusting means) of the pair of first seedling feeding conveyors 31L, 31R, the paper tube seedlings 7 have a strong adhesive force. However, the row seedlings 5 are properly separated at the adjacent positions P of the pair of left and right receiving conveyors 29L, 29R. In other words, the separation position adjusting means can adjust the separation position of the row seedlings 5 to the position P adjacent to the pair of left and right receiving conveyors 29L and 29R.
In this form, although the adjacent position P of the pair of left and right receiving conveyors 29L, 29R cannot be displaced, the number of parts is reduced, so the seedling row separating and feeding device can be simplified. In addition, it is possible to appropriately select a form that is advantageous as an actual machine.
　第１及び第２実施形態に係る苗列分離供給装置１３Ａ，１３Ｂにおいて、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒに、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの搬送方向に沿って所定の間隔を置いて複数の突起を設けるようにしてもよい。
　また、上記突起、及び第３実施形態に係る苗列分離供給装置１３Ｃにおける左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの突起７５においては、図５に示す突起４４と同様の構成とすることができる。
　また、電動シリンダ５８（移動手段、分離位置調整手段）を用いて左右一対の受入コンベヤ２９Ｌ，２９Ｒの隣接位置Ｐを隣接位置Ｐ１又は隣接位置Ｐ２に変位させる第１乃至第３実施形態に係る苗列分離供給装置１３Ａ，１３Ｂ，１３Ｃにおいては、左右一対の受入コンベヤ２９Ｌ，２９Ｒに設ける突起４４又は７５（分離位置調整手段）は、必須の構成ではない。 In the seedling row separating and supplying devices 13A and 13B according to the first and second embodiments, the pair of left and right second seedling feed conveyors 33L and 33R are provided with predetermined A plurality of protrusions may be provided at intervals of .
Moreover, the above projections and the projections 75 of the pair of left and right second seedling feeding conveyors 33L and 33R in the seedling row separating and supplying device 13C according to the third embodiment may be configured in the same manner as the projections 44 shown in FIG. can.
In addition, the seedling according to the first to third embodiments displaces the adjacent position P of the pair of left and right receiving conveyors 29L and 29R to the adjacent position P1 or the adjacent position P2 using the electric cylinder 58 (moving means, separation position adjusting means). In the row separation supply devices 13A, 13B, 13C, the protrusions 44 or 75 (separation position adjusting means) provided on the pair of left and right receiving conveyors 29L, 29R are not essential components.
　また、第１乃至第３実施形態に係る苗列分離供給装置１３Ａ，１３Ｂ，１３Ｃにおいて、左右一対の第１苗送りコンベヤ３１Ｌ，３１Ｒの無端ベルト４３Ｌ，４３Ｒと、左右一対の第２苗送りコンベヤ３３Ｌ，３３Ｒの無端ベルト５０Ｌ，５０Ｒとは、独立したベルトであるが、ベルトを交差させて搬送方向が互いに離間する方向とすることで、１本の共通のベルトで構成することができる。 Further, in the seedling row separating and feeding devices 13A, 13B, and 13C according to the first to third embodiments, the endless belts 43L and 43R of the pair of left and right first seedling feeding conveyors 31L and 31R and the pair of left and right second seedling feeding conveyors The endless belts 50L and 50R of 33L and 33R are independent belts, but by crossing the belts so that the conveying directions are separated from each other, one common belt can be formed.
５　列状苗、７　紙筒苗、１３Ａ，１３Ｂ，１３Ｃ　苗列分離供給装置、１５　苗植付装置、２９Ｌ，２９Ｒ　受入コンベヤ、３１Ｌ，３１Ｒ　第１苗送りコンベヤ、３３Ｌ，３３Ｒ　第２苗送りコンベヤ、４４　突起（分離位置調整手段）、５６　連結枠、５８　電動シリンダ（移動手段、分離位置調整手段） 5 row seedlings, 7 paper tube seedlings, 13A, 13B, 13C seedling row separating and feeding device, 15 seedling planting device, 29L, 29R receiving conveyor, 31L, 31R first seedling feeding conveyor, 33L, 33R second seedling feeding conveyor , 44 projection (separation position adjusting means), 56 connection frame, 58 electric cylinder (moving means, separation position adjusting means)

Claims (4)

  1. 　複数の紙筒苗が並列された一連の列状苗を二方に分離して苗植付装置に供給する苗列分離供給装置であって、
    　前記列状苗が跨って載置される、互いに直列に配置されて搬送方向が互いに離間する方向の一対の受入コンベアと、
    　一対の前記受入コンベヤに載置された前記列状苗の分離位置を調整する分離位置調整手段と、を備えることを特徴とする苗列分離供給装置。     A seedling row separating and supplying device that separates a series of row seedlings in which a plurality of paper tube seedlings are arranged side by side into two directions and supplies them to a seedling planting device,
    a pair of receiving conveyors arranged in series with each other and having conveying directions separated from each other, on which the row seedlings are placed straddling;
    and separation position adjusting means for adjusting the separation position of the row seedlings placed on the pair of receiving conveyors.
  2. 　請求項１に記載の苗列分離供給装置であって、
    　前記分離位置調整手段は、一対の前記受入コンベアの搬送面に設けられて前記紙筒苗を保持する突起を備えることを特徴とする苗列分離供給装置。     The seedling row separating and feeding device according to claim 1,
    The seedling row separating and supplying device, wherein the separating position adjusting means is provided with projections that are provided on the conveying surfaces of the pair of receiving conveyors and hold the paper tube seedlings.
  3. 　請求項１又は２に記載の苗列分離供給装置であって、
    　前記分離位置調整手段は、一対の前記受入コンベアの互いに隣接する隣接位置を搬送方向に沿って移動させる移動手段を備えることを特徴とする苗列分離供給装置。     The seedling row separating and feeding device according to claim 1 or 2,
    The seedling row separating and feeding device, wherein the separating position adjusting means comprises moving means for moving adjacent positions of the pair of receiving conveyors adjacent to each other along the conveying direction.
  4. 　請求項１に記載の苗列分離供給装置であって、
    　一対の前記受入コンベアは、互いに直列に配置された複数のコンベアを含むことを特徴とする苗列分離供給装置。     The seedling row separating and feeding device according to claim 1,
    A seedling row separating and supplying apparatus, wherein the pair of receiving conveyors includes a plurality of conveyors arranged in series with each other.
PCT/JP2022/018033 2021-04-19 2022-04-18 Seedling row separate supply device WO2022224931A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938711U (en) * 1982-09-07 1984-03-12 株式会社クボタ Transplanter seedling transfer device
JPH0340088Y2 (en) * 1985-04-23 1991-08-23
JP3541024B2 (en) * 2001-02-05 2004-07-07 株式会社ホクエイ Seedling supply method and seedling supply device for transplanter
JP3686356B2 (en) * 2001-07-11 2005-08-24 株式会社ホクエイ Transplanter seedling supply device
JP2006149267A (en) * 2004-11-29 2006-06-15 Hokuei:Kk Seedling-distributing device of transplanter
CN110447361A (en) * 2019-09-07 2019-11-15 孟永升 A kind of chain type paper pot transplanter and application method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938711U (en) * 1982-09-07 1984-03-12 株式会社クボタ Transplanter seedling transfer device
JPH0340088Y2 (en) * 1985-04-23 1991-08-23
JP3541024B2 (en) * 2001-02-05 2004-07-07 株式会社ホクエイ Seedling supply method and seedling supply device for transplanter
JP3686356B2 (en) * 2001-07-11 2005-08-24 株式会社ホクエイ Transplanter seedling supply device
JP2006149267A (en) * 2004-11-29 2006-06-15 Hokuei:Kk Seedling-distributing device of transplanter
CN110447361A (en) * 2019-09-07 2019-11-15 孟永升 A kind of chain type paper pot transplanter and application method

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